Endocrinologists · Illinois · October 2026
Best Endocrinologists in Illinois (October 2026)
Dr. Sufyan Said ranks first with a score of 79.3: 4.9 stars from 102 Google reviews; 34 years since medical school; accepts Medicare assignment. Dr. Mary Codo ranks second with a score of 78.9: 4.8 stars from 155 Google reviews; 38 years since medical school; accepts Medicare assignment. Dr. Falguni Vasa ranks third with a score of 78.6: 4.8 stars from 146 Google reviews; 30 years since medical school; accepts Medicare assignment.
- 1
Sufyan Said, MD
4.9 out of 5 · 102 Google reviews
Score 79.3 · 34 years since medical school; accepts Medicare assignment
- 2
Mary Codo, MD
4.8 out of 5 · 155 Google reviews
Score 78.9 · 38 years since medical school; accepts Medicare assignment
- 3
Falguni Vasa, MD
4.8 out of 5 · 146 Google reviews
Score 78.6 · 30 years since medical school; accepts Medicare assignment
- 4
Babak Pazooki, MD
4.8 out of 5 · 138 Google reviews
Score 78.4 · 32 years since medical school; accepts Medicare assignment
- 5
Suchitra Bhakta, MD
4.7 out of 5 · 142 Google reviews
Score 76.2 · 31 years since medical school; accepts Medicare assignment
- 6
Grant Sievertsen, MD
4.8 out of 5 · 70 Google reviews
Score 75.5 · 52 years since medical school; accepts Medicare assignment
- 7
Chaitanya Mamillapalli, MD
4.8 out of 5 · 85 Google reviews
Score 72.2 · 26 years since medical school; accepts Medicare assignment
- 8
Nittor Jayaram, MD
4.6 out of 5 · 11 Google reviews
Score 67.5 · 52 years since medical school; accepts Medicare assignment
- 9
Akbar Rahmani, MD
4.6 out of 5 · 10 Google reviews
Score 67.4 · 53 years since medical school; accepts Medicare assignment
- 10
Yoojin Pak, MD
4.9 out of 5 · 108 Google reviews
Score 67.1 · 18 years since medical school; accepts Medicare assignment
The same list as a table
| Rank | Doctor | City | Score | Rating | Reviews | Years |
|---|---|---|---|---|---|---|
| 1 | Sufyan Said, MD | Springfield | 79.3 | 4.9 | 102 | 34 |
| 2 | Mary Codo, MD | Naperville | 78.9 | 4.8 | 155 | 38 |
| 3 | Falguni Vasa, MD | Naperville | 78.6 | 4.8 | 146 | 30 |
| 4 | Babak Pazooki, MD | Joliet | 78.4 | 4.8 | 138 | 32 |
| 5 | Suchitra Bhakta, MD | Lisle | 76.2 | 4.7 | 142 | 31 |
| 6 | Grant Sievertsen, MD | Hinsdale | 75.5 | 4.8 | 70 | 52 |
| 7 | Chaitanya Mamillapalli, MD | Springfield | 72.2 | 4.8 | 85 | 26 |
| 8 | Nittor Jayaram, MD | Orland Park | 67.5 | 4.6 | 11 | 52 |
| 9 | Akbar Rahmani, MD | Flossmoor | 67.4 | 4.6 | 10 | 53 |
| 10 | Yoojin Pak, MD | Lisle | 67.1 | 4.9 | 108 | 18 |
How we ranked
Ratings are weighted toward independent, third-party verified patient reviews. When a physician has them, 60% of the rating comes from patients surveyed by an independent third party (not chosen by the practice) and 40% from public, anonymous reviews such as Google. Anonymous reviews alone count for less, so a few posts can't carry a physician to the top. The score also weighs years since medical school and accepting Medicare assignment. Every physician here has a verified practice website and at least five patient reviews. No one can pay to change a rank. Read the full method.
Questions
Who is the highest-ranked endocrinologist in Illinois?
Sufyan Said, MD in Springfield, with a BestDocs score of 79.3 (4.9 stars from 102 Google reviews; 34 years since medical school; accepts Medicare assignment).
How many endocrinologists in Illinois have online booking?
8 of the 32 ranked endocrinologists in Illinois offer online booking on their practice website.
How are these endocrinologists ranked?
By the BestDocs score, which is weighted toward independent third-party verified patient reviews: patient rating (50 points; 60% independent verified reviews and 40% anonymous public reviews when both exist), years in practice (31.25) and verified credentials (18.75). Sponsored placements never change rank. The full method is on the methodology page.
Data as of October 2026. Sources: CMS NPPES, CMS Doctors and Clinicians file, Google business listings, practice websites. Ratings are Google ratings, shown as text and not marked up as reviews.